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Abstract

Considering the large variety of applications for optical glass
waveguide gratings, the effective production method of embossing for
micropatterning, and the unique advantages of InP-based materials, we
expect that hybridization of embossed optical glass waveguide gratings
and InP substrates will inevitably lead to new applications in
integrated optics. We present our preliminary results of research
toward the development of solgel-derived glass waveguide gratings made
by embossing on InP. Theoretically, the dependence of the stop-band
FWHM and transmission contrast of the grating filter on the grating
length, and the relationship between the Bragg grating’s reflective
wavelength and the dopant concentration in the solgel waveguide, are
obtained. Experimentally, using organically modified silane, we
solve the problem of mismatching of SiO2 and InP, and
successfully fabricate an embossed glass grating with a second-order
Bragg reflection wavelength of 1580 nm and a FWHM of 0.7 nm fabricated
upon a solgel waveguide on an InP substrate.

References

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